【作者(必填)】Lars Heide

【文题(必填)】Facilitating and restricting a challenger: Patents and standards in the development of the Bull-Knutsen punched card system, 1919–1938

【年份(必填)】Pages 28-44 | Published online: 26 Jan 2009

【全文链接或数据库名称(选填)】https://doi.org/10.1080/00076790802602172